package com.fckbug.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.fckbug.Constants;
import com.fckbug.vos.Acc;



public class AuthFilter implements Filter {
    public void init(FilterConfig filterConfig) throws ServletException {
    }

    public void doFilter(ServletRequest request, ServletResponse response,
        FilterChain chain) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse res = (HttpServletResponse) response;

        HttpSession session = req.getSession();
        
        Acc loginedUser = (Acc) session.getAttribute(Constants.SESSION_USER); //从session里取的用户名信息  
        System.out.println(req.getRequestURI());
        
        if (loginedUser != null) { //已经登陆
            chain.doFilter(request, response);
        } else {
        	//session.setAttribute("rurl", req.getRequestURI());
            res.sendRedirect("/login.jsp"); //跳转到登陆页面
        }
    }

    public void destroy() {
    }
}
